The template is not valid. Newtonsoft.Json.JsonReaderException: Error reading JToken from JsonReader. Path '', line 0, position 0. at Newtonsoft.Json.Linq.JToken.ReadFrom(JsonReader reader, JsonLoadSettings settings) at Newtonsoft.Json.Linq.JToken.ReadFrom(JsonReader reader) at GitHub.DistributedTask.Expressions2.Sdk.Functions.FromJson.EvaluateCore(EvaluationContext context, ResultMemory& resultMemory) at GitHub.DistributedTask.Expressions2.Sdk.ExpressionNode.Evaluate(EvaluationContext context) at GitHub.DistributedTask.Expressions2.Sdk.Operators.Index.EvaluateCore(EvaluationContext context, ResultMemory& resultMemory) at GitHub.DistributedTask.Expressions2.Sdk.ExpressionNode.Evaluate(EvaluationContext context) at GitHub.DistributedTask.Expressions2.Sdk.Operators.Index.EvaluateCore(EvaluationContext context, ResultMemory& resultMemory) at GitHub.DistributedTask.Expressions2.Sdk.ExpressionNode.Evaluate(EvaluationContext context) at GitHub.DistributedTask.Expressions2.Sdk.Operators.Equal.EvaluateCore(EvaluationContext context, ResultMemory& resultMemory) at GitHub.DistributedTask.Expressions2.Sdk.ExpressionNode.Evaluate(EvaluationContext context) at GitHub.DistributedTask.Expressions2.Sdk.Operators.And.EvaluateCore(EvaluationContext context, ResultMemory& resultMemory) at GitHub.DistributedTask.Expressions2.Sdk.ExpressionNode.Evaluate(EvaluationContext context) at GitHub.DistributedTask.Expressions2.Sdk.ExpressionNode.GitHub.DistributedTask.Expressions2.IExpressionNode.Evaluate(ITraceWriter trace, ISecretMasker secretMasker, Object state, EvaluationOptions options) at GitHub.DistributedTask.ObjectTemplating.Tokens.TemplateToken.EvaluateTemplateToken(TemplateContext context, String expression, Int32& bytes) at GitHub.DistributedTask.ObjectTemplating.TemplateUnraveler.RootBasicExpression()